Southgate will be without 10 players until the eve of the tournament as Chelsea face Arsenal in the Europa League showpiece before the Champions League final between Tottenham and Liverpool on June 1.

With Manchester City's FA Cup finalists and Borussia Dortmund winger Jadon Sancho getting extra time off, Southgate will have just 12 of his 27-strong preliminary selection available when the squad meets up at St George's Park on Tuesday.

"It has been an incredible couple of weeks for English football," Southgate said.

"Both the European ties and the Championship play-offs, so really exciting matches and the start of trophies being handed out.

"We're looking forward to the opportunity to finish that summer off once everything is done – a great opportunity for us to build on the last 12 months.

"In terms of the squad, a bit larger than normal for obvious reasons.

Ruben Loftus-Cheek, right, suffered an injury in Chelsea's friendly in the US (Stew Milne/AP)

"We have a lot of unknowns. Callum Hudson-Odoi and Ruben Loftus-Cheek would definitely have been in this squad, so very unfortunate for both of them that they look like they've both sustained injuries that may keep them out for some period of time, although we are waiting on full confirmation on Ruben."

Chelsea midfielder Loftus-Cheek suffered what appeared to be a serious Achilles injury in a post-season friendly in the United States on Wednesday evening, leading Southgate to select 27 players rather than 28.

The expanded squad offers padding should there be withdrawals ahead of the finals, while a big question mark hangs over Tottenham striker Kane five weeks on from ankle ligament damage.

"We speak with Spurs more generally," the England boss told BBC Radio 5 Live. "I tend to speak to Jesus (Perez, Tottenham assistant manager) more because he looks after the physical conditioning of the players.

"Mauricio (Pochettino), like all managers, has got a million things on his plate.